Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 97.1 >
edited by Bei Jinggeng
on 2022/11/30 10:55
To version < 77.1 >
edited by Edwin Chen
on 2022/10/07 12:44
>
Change comment: There is no comment for this version

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1 -XWiki.Bei
1 +XWiki.Edwin
Content
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33 33  
34 34  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35 35  
36 -
37 37  (((
37 +(((
38 +(((
39 +
40 +
38 38  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
39 39  )))
43 +)))
40 40  
41 41  (((
46 +(((
42 42  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
43 43  )))
49 +)))
44 44  
45 45  (((
52 +(((
46 46  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
47 47  )))
55 +)))
48 48  
49 49  (((
58 +(((
50 50  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
51 51  )))
52 52  
53 53  (((
54 54  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
64 +
65 +
55 55  )))
67 +)))
68 +)))
56 56  
57 -
58 58  (% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
59 59  
60 60  
... ... @@ -64,7 +64,7 @@
64 64  
65 65  (% style="color:#037691" %)**Hardware System:**
66 66  
67 -* STM32L072xxxx MCU
79 +* STM32L072CZT6 MCU
68 68  * SX1276/78 Wireless Chip 
69 69  * Power Consumption (exclude RS485 device):
70 70  ** Idle: 32mA@12v
... ... @@ -291,10 +291,10 @@
291 291  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
292 292  
293 293  
294 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
306 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
295 295  |=(% style="width: 110px;" %)(((
296 296  **AT Commands**
297 -)))|=(% style="width: 210px;" %)(((
309 +)))|=(% style="width: 190px;" %)(((
298 298  **Description**
299 299  )))|=(% style="width: 190px;" %)(((
300 300  **Example**
... ... @@ -360,8 +360,8 @@
360 360  )))
361 361  )))
362 362  
363 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
364 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
375 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
376 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
365 365  |AT+CFGDEV|(% style="width:110px" %)(((
366 366  (((
367 367  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
... ... @@ -408,7 +408,7 @@
408 408  
409 409  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
410 410  |(% style="width:496px" %)(((
411 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
423 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
412 412  
413 413  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
414 414  
... ... @@ -494,15 +494,11 @@
494 494  Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
495 495  
496 496  
497 -~1. PAYVER: Defined by AT+PAYVER
509 +1. PAYVER: Defined by AT+PAYVER
510 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
511 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
512 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
498 498  
499 -2. PAYLOAD COUNT: Total how many uplinks of this sampling.
500 -
501 -3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
502 -
503 -4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
504 -
505 -
506 506  (% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
507 507  
508 508  
... ... @@ -568,26 +568,8 @@
568 568  == 3.4 Uplink Payload ==
569 569  
570 570  
571 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
572 -|=(% scope="row" style="width: 60px;" %)(((
573 -Size(bytes)
574 -)))|(% style="width:80px" %)1|(% style="width:360px" %)(((
575 -Length depends on the return from the commands
576 -)))
577 -|=(% style="width: 90px;" %)(((
578 -Value
579 -)))|(% style="width:114px" %)(((
580 -PAYLOAD_VER
581 -)))|(% style="width:353px" %)(((
582 -If the valid payload is too long and exceed the maximum
579 +(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
583 583  
584 -support payload length in server, server will show payload not
585 -
586 -provided in the LoRaWAN server.
587 -)))
588 -
589 -(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
590 -
591 591  (% title="Click and drag to resize" %)​
592 592  
593 593  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
... ... @@ -1188,27 +1188,7 @@
1188 1188  
1189 1189  
1190 1190  
1191 -==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1192 1192  
1193 -
1194 -* (((
1195 -(% style="color:#037691" %)** AT Command:**
1196 -)))
1197 -
1198 -(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1199 -
1200 -(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1201 -
1202 -* (((
1203 -(% style="color:#037691" %)**Downlink Payload:**
1204 -)))
1205 -
1206 -(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1207 -
1208 -(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1209 -
1210 -
1211 -
1212 1212  ==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1213 1213  
1214 1214  (((
... ... @@ -1284,17 +1284,20 @@
1284 1284  
1285 1285  (% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1286 1286  
1257 +
1287 1287  Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1288 1288  
1289 1289  
1290 1290  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1291 1291  
1292 -For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1293 1293  
1294 1294  
1265 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1295 1295  
1267 +
1296 1296  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1297 1297  
1270 +
1298 1298  For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1299 1299  
1300 1300  
... ... @@ -1336,7 +1336,7 @@
1336 1336  (% style="color:#037691" %)**Downlink Payload:**
1337 1337  )))
1338 1338  
1339 -(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1312 +(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
1340 1340  
1341 1341  [[image:image-20220824144240-1.png]]
1342 1342  
... ... @@ -1453,8 +1453,8 @@
1453 1453  == 3.7 Buttons ==
1454 1454  
1455 1455  
1456 -(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1457 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1429 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1430 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1458 1458  |(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1459 1459  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1460 1460  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
... ... @@ -1462,7 +1462,7 @@
1462 1462  == 3.8 LEDs ==
1463 1463  
1464 1464  
1465 -(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1438 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1466 1466  |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1467 1467  |**PWR**|Always on if there is power
1468 1468  |**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
... ... @@ -1665,7 +1665,7 @@
1665 1665  == 6.5 Can i use point to point communication for RS485-LN? ==
1666 1666  
1667 1667  
1668 -Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1641 +Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1669 1669  
1670 1670  
1671 1671  
... ... @@ -1675,107 +1675,7 @@
1675 1675  [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1676 1676  
1677 1677  
1678 -== 6.7 How to judge whether there is a problem with the set COMMAND ==
1679 1679  
1680 -=== 6.7.1 Introduce: ===
1681 -
1682 -
1683 -Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
1684 -
1685 -1. Test if Modbus-MTU works with PC commands.
1686 -1. Check if RS485-LN sent the expected command to Mobus-MTU
1687 -1. Check if Modbus-MTU return back the expected result to RS485-LN.
1688 -1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1689 -
1690 -[[image:image-20221130104310-1.png||height="380" width="680"]]
1691 -
1692 -
1693 -Example Connection:
1694 -
1695 -[[image:image-20221130104310-2.png]]
1696 -
1697 -
1698 -=== 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1699 -
1700 -Note: Receive and send set to hex mode
1701 -
1702 -[[image:image-20221130104310-3.png||height="616" width="714"]]
1703 -
1704 -
1705 -=== 6.7.3 With ModRSsim2: ===
1706 -
1707 -(1)Select serial port MODBUS RS-232
1708 -
1709 -[[image:image-20221130104310-4.png||height="390" width="865"]]
1710 -
1711 -
1712 -(2)Click the serial port icon
1713 -
1714 -[[image:image-20221130104310-5.png||height="392" width="870"]]
1715 -
1716 -
1717 -(3)After selecting the correct serial port and baud rate, click ok
1718 -
1719 -[[image:image-20221130104310-6.png]]
1720 -
1721 -(4)Click the comms.
1722 -
1723 -[[image:image-20221130104310-7.png||height="376" width="835"]]
1724 -
1725 -(% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1726 -Run RS485-LN/BL command and monitor if it is correct.
1727 -
1728 -
1729 -=== 6.7.4 Example – Test the CFGDEV command ===
1730 -
1731 -RS485-LN sent below command:
1732 -
1733 -AT+CFGDEV=01 03 20 00 01 85 c0,1 to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1734 -
1735 -
1736 -We can see the output from the Serial port tool to analyze. And check if they are expected result.
1737 -
1738 -[[image:image-20221130104310-8.png||height="214" width="797"]]
1739 -
1740 -We can also use ModRSsim2 to see the output.
1741 -
1742 -[[image:image-20221130104310-9.png||height="531" width="729"]]
1743 -
1744 -
1745 -
1746 -=== 6.7.5 Example – Test CMD command sets. ===
1747 -
1748 -Run AT+SENSORVALUE=1 to test the CMD commands set in RS485-LN.
1749 -
1750 -
1751 -Serial port tool:
1752 -
1753 -[[image:image-20221130104310-10.png||height="339" width="844"]]
1754 -
1755 -ModRSsim2:
1756 -
1757 -[[image:image-20221130104310-11.png||height="281" width="962"]]
1758 -
1759 -
1760 -
1761 -=== 6.7.6 Test with PC ===
1762 -
1763 -If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
1764 -
1765 -
1766 -Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1767 -
1768 -Connection method：
1769 -
1770 -[[image:image-20221130104310-12.png]]
1771 -
1772 -Link situation:
1773 -
1774 -[[image:image-20221130104310-13.png||height="458" width="486"]]
1775 -
1776 -[[image:image-20221130104310-14.png||height="371" width="823"]]
1777 -
1778 -
1779 1779  = 7. Trouble Shooting =
1780 1780  
1781 1781  
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